Strattera 40 mg, containing atomoxetine, is a non-stimulant medication used to treat Attention Deficit Hyperactivity Disorder (ADHD) in children and adults. It works by increasing norepinephrine levels in the brain, improving focus, attention, and impulse control. Unlike stimulants, Strattera has a lower abuse risk. Common side effects include dry mouth, insomnia, and nausea.